The best overclocker below $200 would likely be an ASUS P35 board.
www.hardocp.com had some 500MHz+ FSB overclocks with quality RAM and an E6300. ASUS P5K Deluxe hit 505MHz.
The 750i will take you to about 400MHz FSB (450Mhz if you're very lucky).
At $200 you can get a Gigabyte GA-EX38-DS4 but it's out of stock at newegg.
Best (by least effort taken) to overclock :
GA-EX38-DS4 (does 400MHz at stock so you likely won't overclock it at all).
ASUS P5K (Pro/E/Premium) Premium is a revision of the Deluxe mentioned above
Just about everything else
On a side note : there's a thread http://www.tomshardware.co.uk/forum/247026-11-e7200-0mhz-booya
RoadRunner197069 took E7200 to 4.0GHz on a GA-P35-DS3L with good quality RAM but it takes some skill and quite a bit of effort to do that.